<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>重复字符串</title>
</head>
<body>
    
    <script>
    
        {

            let str = 'abc';
            let str2 = str.repeat(3);

            console.log(str2);
        }
    
    </script>

</body>
</html>